Interesting Ideas for the future

[user removed]

http://www.youtube.com/user/Ride122609

Running off compressed air, first operational prototype.

regards
Mech

[Bicycle Bob]

Originally Posted by mpgx2

thats right.

The 376 mpg demo is interesting. I don't know of
other vapor conversions but I know many don't end
well.

My understanding of all the failures with implementations
of vapour injection is that the engine overheats because
there is no combustion chamber cooling system.

The 1900's might have the answer to that one and
what they did back then was use water injection instead
of liquid fuel to control the temperature in the combustion
chamber.

I'm very sure that water-injection can replace the
cooling ability of liquid fuel and control cylinder temperatures.

I personally do not care if I am using more water in my
car than petrol.

I'm thinking that maybe vapour might be good for idling
and coasting, and then if I need power, then allow the
fuel injectors to spray only when and if I actually need
some power.

Temperature control is vital. Actually the car I am using
has uses too much fuel and gets too hot. So all of this
thinking just comes with trying to fix the current problems

I want my car to run at 60% of its current temperature.

That's my goal. I'm told it will be more efficient.

Handling gasoline in its vapour phase only changes its volume, not its BTU potential. Maximum efficiency comes with maximum combustion temperature. Some air-cooled engines were notorious for being run rich to keep from melting themselves, but now, we reduce peak temperatures and efficiency to avoid turning the nitrogen into pollution by recirculating some exhaust gas.

The improvement in gasoline engines has been mostly about widening the range of conditions where they approach maximum efficiency. EFI got the mixtures right, and variable valve timing extends the efficient RPM range. Variable compression can extend the range of efficient throttle openings. Lean burning tricks are an advance. Some energy can be recovered by replacing the throttle plate with a wind turbine.
Compressed air is the most dangerous "fuel" to store, because it does not have to mix with oxygen to release all its energy - it is like a high explosive. It also gives less range than even lead-acid batteries, and needs huge heat exchangers between multiple expansion stages for decent efficiency.